Chuck



FIG. 1 is a perspective view of a chuck;

FIG. 2 is a top view of the chuck;

FIG. 3 is a bottom view of the chuck; and,

FIG. 4 is a side view of the chuck.

The broken lines shown in the drawings of a chuck are for illustrativepurposes only and form no part of the claimed design.

CLAIM The ornamental design for a chuck, as shown and described.